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// Copyright (c) 2020 Vasyl Teliman
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SOURCE_FUZZ_TRANSFORMATION_PERMUTE_FUNCTION_PARAMETERS_H_
#define SOURCE_FUZZ_TRANSFORMATION_PERMUTE_FUNCTION_PARAMETERS_H_
#include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
#include "source/fuzz/transformation.h"
#include "source/fuzz/transformation_context.h"
#include "source/opt/ir_context.h"
namespace spvtools {
namespace fuzz {
class TransformationPermuteFunctionParameters : public Transformation {
public:
explicit TransformationPermuteFunctionParameters(
protobufs::TransformationPermuteFunctionParameters message);
TransformationPermuteFunctionParameters(
uint32_t function_id, uint32_t function_type_fresh_id,
const std::vector<uint32_t>& permutation);
// - |function_id| is a valid non-entry-point OpFunction instruction
// - |function_type_fresh_id| is a fresh id.
// New type is valid if:
// - it has the same number of operands as the old one
// - function's result type is the same as the old one
// - function's arguments are permuted according to |permutation| vector
// - |permutation| is a set of [0..(n - 1)], where n is a number of arguments
// to the function
bool IsApplicable(
opt::IRContext* ir_context,
const TransformationContext& transformation_context) const override;
// - OpFunction instruction with |result_id == function_id| is changed.
// Its arguments are permuted according to the |permutation| vector
// - Adjusts function's type to accommodate for permuted parameters.
// - Calls to the function are adjusted accordingly
void Apply(opt::IRContext* ir_context,
TransformationContext* transformation_context) const override;
std::unordered_set<uint32_t> GetFreshIds() const override;
protobufs::Transformation ToMessage() const override;
private:
protobufs::TransformationPermuteFunctionParameters message_;
};
} // namespace fuzz
} // namespace spvtools
#endif // SOURCE_FUZZ_TRANSFORMATION_PERMUTE_FUNCTION_PARAMETERS_H_